Why apple doesn't have a built in sound equalizer? to create the fake illusion that itunes sound better?

Like they'll throw away all the profits they get from itunes and implement a equalizer for the mac os system as a default. This is pathetic btw, to degrade something which is bare minimum these days to have a system wide sound equalizer than providing an equalizer to itunes app just to create the illustion of that it provides better quality media. Increase the device price that's alright but don't do such low level stuff.